BirdAnalyst
BBS Route · Illinois · BCR 22

Clarksdale Bird Survey Route

A standard 50-stop Breeding Bird Survey route. 100 species recorded across 44 survey years, still active.

100Species RecordedSpecies recordedDistinct species detected on standard-protocol BBS runs here across all years on record — a measure of survey breadth, not a complete checklist.Full methodology →
44Years SurveyedYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →
1968–2023Span
7Observers

Bird Species Found on Illinois Clarksdale

Top 40 of 100 species by most recent count. Each links to its species trend.

Species recorded on the Clarksdale route.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →Baseline yearThe first year of the smoothed window the trend is measured from. An earlier baseline means a longer record stands behind the number.Full methodology →History
Red-winged BlackbirdIcteridae892023-83%1971
Rock PigeonColumbidae372022-12%1971
American CrowCorvidae362023-57%1971
American RobinTurdidae312023-57%1971
European StarlingSturnidae242023-86%1971
Common GrackleIcteridae242023-93%1971
Mourning DoveColumbidae222023-75%1971
DickcisselCardinalidae172023-89%1971
KilldeerCharadriidae132023+143%1971
Northern CardinalCardinalidae132023-66%1971
Indigo BuntingCardinalidae122023-64%1971
Horned LarkAlaudidae102023-98%1971
Brown-headed CowbirdIcteridae102023-91%1971
Barn SwallowHirundinidae82023-75%1971
Canada GooseAnatidae82023+67%2008
Eurasian Collared-DoveColumbidae72023+100%2013
Ring-necked PheasantPhasianidae62023-83%1971
House SparrowPasseridae62023-99%1971
Wild TurkeyPhasianidae52023+250%2011
Eastern MeadowlarkIcteridae42023-99%1971
Lark SparrowPasserellidae41971n/an/a
Eastern KingbirdTyrannidae32023-57%1971
American GoldfinchFringillidae32023-77%1971
Song SparrowPasserellidae32022-94%1971
Common YellowthroatParulidae32022-81%1971
Northern House WrenTroglodytidae32022-87%1971
Northern BobwhiteOdontophoridae22023-98%1971
Yellow-billed CuckooCuculidae22023-78%1971
Red-bellied WoodpeckerPicidae22023-74%1971
Acadian FlycatcherTyrannidae22021-20%1971
Western MeadowlarkIcteridae21971+100%1968
Carolina WrenTroglodytidae22018-56%1971
Red-tailed HawkAccipitridae22022+20%1989
Red-headed WoodpeckerPicidae22021-91%1978
Purple MartinHirundinidae22022-57%1992
Black-capped ChickadeeParidae22004+125%1980
Great Blue HeronArdeidae22023+33%1990
Rose-breasted GrosbeakCardinalidae22021+33%1997
Northern Rough-winged SwallowHirundinidae21987n/an/a
Great Horned OwlStrigidae22014-56%1990

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22. A route is a sample, not a census.